Stellenticket Humboldt-Universität zu Berlin

Die Mis­sion des Leib­niz-Zen­trums für Agrar­land­schafts­forschung (ZALF) e. V. als national und inter­na­tional agi­er­endes Forschung­szen­trum ist es, an der öko­nomisch, öko­lo­gisch und sozial nach­halti­gen Land­wirtschaft der Zukunft zu forschen – gemein­sam mit Akteuren aus der Wis­senschaft, Politik und Praxis. Das ZALF ist Mit­glied der Leib­niz-Gemeinsch­aft und unter­hält neben dem Hauptstan­dort in Müncheberg (ca. 35 Minuten mit der Region­al­bahn von Ber­lin-Lichten­berg) eine Forschungssta­tion mit weit­eren Stan­dorten in Dede­low sowie Pau­lin­enaue.

The pro­ject HAIR­phae (DFG) aims on study­ing the trade-off between root and mycor­rhizal absorpt­ive sur­face in response to soil nutri­ent stoi­chiometry. Plant eco­lo­gists have used eco­nomic the­ory to explain plant traits diversity from a resource acquis­i­tion point of view. The frame­work of the Root Eco­nom­ics Space includes the col­lab­or­a­tion gradi­ent that describes the plant reli­ance to sym­bi­osis with mycor­rhiza. The “out­sourcing” strategy within the col­lab­or­a­tion gradi­ent is char­ac­ter­ized by high root dia­meter, low spe­cific root lengths and strong mycor­rhizal sym­bi­osis. In con­trast, plants fol­low­ing the “do it your­self” strategy exhibit a fine acquis­it­ive root sys­tem but also a high root hair incid­ence and are less mycor­rhiza reli­ant.

This Bach­elor/Mas­ter pro­ject aims to test vari­ation in mycor­rhizal hyphae in the soil in response to land-use in man­aged grass­lands. The field-sampling has already been done and a com­pre­hens­ive sample eval­u­ation has star­ted to which the pos­i­tion advert­ised here is inten­ded to con­trib­ute by meas­ur­ing extrarad­ical hyphal length.